{
  "exercise": "ocr-numbers",
  "version": "1.1.0",
  "comments": [
    "An expectation of  -1 indicates that a failure should be raised"
  ],
  "cases": [
    {
      "description": "Converts lines of OCR Numbers to a string of integers",
      "cases": [
        {
          "description": "Recognizes 0",
          "property": "convert",
          "input": {
            "rows": [
              " _ ",
              "| |",
              "|_|",
              "   "
            ]
          },
          "expected": "0"
        },
        {
          "description": "Recognizes 1",
          "property": "convert",
          "input": {
            "rows": [
              "   ",
              "  |",
              "  |",
              "   "
            ]
          },
          "expected": "1"
        },
        {
          "description": "Unreadable but correctly sized inputs return ?",
          "property": "convert",
          "input": {
            "rows": [
              "   ",
              "  _",
              "  |",
              "   "
            ]
          },
          "expected": "?"
        },
        {
          "description": "Input with a number of lines that is not a multiple of four raises an error",
          "property": "convert",
          "input": {
            "rows": [
              " _ ",
              "| |",
              "   "
            ]
          },
          "expected": -1
        },
        {
          "description": "Input with a number of columns that is not a multiple of three raises an error",
          "property": "convert",
          "input": {
            "rows": [
              "    ",
              "   |",
              "   |",
              "    "
            ]
          },
          "expected": -1
        },
        {
          "description": "Recognizes 110101100",
          "property": "convert",
          "input": {
            "rows": [
              "       _     _        _  _ ",
              "  |  || |  || |  |  || || |",
              "  |  ||_|  ||_|  |  ||_||_|",
              "                           "
            ]
          },
          "expected": "110101100"
        },
        {
          "description": "Garbled numbers in a string are replaced with ?",
          "property": "convert",
          "input": {
            "rows": [
              "       _     _           _ ",
              "  |  || |  || |     || || |",
              "  |  | _|  ||_|  |  ||_||_|",
              "                           "
            ]
          },
          "expected": "11?10?1?0"
        },
        {
          "description": "Recognizes 2",
          "property": "convert",
          "input": {
            "rows": [
              " _ ",
              " _|",
              "|_ ",
              "   "
            ]
          },
          "expected": "2"
        },
        {
          "description": "Recognizes 3",
          "property": "convert",
          "input": {
            "rows": [
              " _ ",
              " _|",
              " _|",
              "   "
            ]
          },
          "expected": "3"
        },
        {
          "description": "Recognizes 4",
          "property": "convert",
          "input": {
            "rows": [
              "   ",
              "|_|",
              "  |",
              "   "
            ]
          },
          "expected": "4"
        },
        {
          "description": "Recognizes 5",
          "property": "convert",
          "input": {
            "rows": [
              " _ ",
              "|_ ",
              " _|",
              "   "
            ]
          },
          "expected": "5"
        },
        {
          "description": "Recognizes 6",
          "property": "convert",
          "input": {
            "rows": [
              " _ ",
              "|_ ",
              "|_|",
              "   "
            ]
          },
          "expected": "6"
        },
        {
          "description": "Recognizes 7",
          "property": "convert",
          "input": {
            "rows": [
              " _ ",
              "  |",
              "  |",
              "   "
            ]
          },
          "expected": "7"
        },
        {
          "description": "Recognizes 8",
          "property": "convert",
          "input": {
            "rows": [
              " _ ",
              "|_|",
              "|_|",
              "   "
            ]
          },
          "expected": "8"
        },
        {
          "description": "Recognizes 9",
          "property": "convert",
          "input": {
            "rows": [
              " _ ",
              "|_|",
              " _|",
              "   "
            ]
          },
          "expected": "9"
        },
        {
          "description": "Recognizes string of decimal numbers",
          "property": "convert",
          "input": {
            "rows": [
              "    _  _     _  _  _  _  _  _ ",
              "  | _| _||_||_ |_   ||_||_|| |",
              "  ||_  _|  | _||_|  ||_| _||_|",
              "                              "
            ]
          },
          "expected": "1234567890"
        },
        {
          "description": "Numbers separated by empty lines are recognized. Lines are joined by commas.",
          "property": "convert",
          "input": {
            "rows": [
              "    _  _ ",
              "  | _| _|",
              "  ||_  _|",
              "         ",
              "    _  _ ",
              "|_||_ |_ ",
              "  | _||_|",
              "         ",
              " _  _  _ ",
              "  ||_||_|",
              "  ||_| _|",
              "         "
            ]
          },
          "expected": "123,456,789"
        }
      ]
    }
  ]
}